Page 230 - Din prodcuts 2020

2/38 ELECTRICAL INSTALL ATION SOLUTIONS FOR BUILDINGS 2CHC 420 001 C0201

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RCCBs
F-ATI and F-ARI

F-ATI and F-ARI Test are RCCBs equipped with automatic test features. RCCBs are supposed
to be checked every six months in order to make sure that the contacts are working properly
and the device is able to trip in case of a leakage to earth. This swift operation affects the
operational continuity of the circuits downstream and required a lot of man power. F-ATI and
F-ARI test ranges push the periodic test to another level as this is run automatically and with
no interruption at all of the service. Therefore, also the operations carried out by mainte-
nance personnel are reduced to the very minimum.
In addition to the automatic test, F-ARI Range features a reclosing unit that tries to reclose
the RCCB as it trips. The reclosing operations are based on an insulation check to make sure
that no permanent fault is present. The insulation check is done with a very low current with
no danger for human at any time. Once the insulation check is positive the reclosing unit
recloses the RCCB again. Moreover, the results coming from each and every circuit are
collected at once thanks to ARBus interface.

• Saving: maintenance costs are cut down as the device runs automatically the test monthly
in accordance with EN 61008 provisions.
• Uptime: while running the test, no disconnection of the supply occurs like in the traditional
RCCB units.
• Time saving: a full array of maximum 99 devices can be commanded and read by remote by
the means of the ARBus interface.
• Easy installation: the unit is factory fitted and it needs no coupling
• Quality: F-ATI Test range is approved by VDE while F-ARI Test is approved by IMQ CSV.
• Smart: complete monitoring over the application thanks to a fault check system and
a programmable aux contact
• Reliability: Suitable for demanding environments up to 60 °C
• High immunity: RCCBs Type A APR offer the adequate solution according to the type
of loads to be protected , the level of safety and the continuity of service. (inserire forme
d’onda ammesse per APR)